Examining the credibility of macroeconomic forecasts: Null of cointegration approach |
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Authors: | Swarna D. Dutt Dipak Ghosh |
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Affiliation: | 1. Department of Economics Richards College of Business, State University of West Georgia, 30118, Carrollton, GA 2. Department of Economics, Emporia State University, 66801, Emporia, KS
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Abstract: | In this study we examine the accuracy of forecasts of a select group of major macroeconomic variables, representing both the real and the financial sector of the economy. The theoretical foundations are similar to the one used to study exchange rate expectations, i.e. a verification of consistency and rationality in forecast formation. The empirical measure of accuracy is consistency in the expectation formation process, a precursor to rational forecasts. Here we examine the cointegration properties of the actual and forecast series (at multiple horizons) using the modern null of cointegration approach. A very reliable and continuos data set, the ASA-NBER survey is used. We find evidence of short (long) term expectational consistency (inconsistency) i.e. bandwagon effects and a mean reversion tendency in case of real variables, while the forecasts of financial variables are inconsistent across all forecast horizons. |
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